WILO COR-1MHIE pressure booster set 3x400V

Your advantages

• Sturdy system due to MHIE series stainless steel high-pressure multistage centrifugal pumps with air-cooled integrated frequency converter

• Frequency converter with superproportionally large control range

• Integrated full motor protection via PTC

• Integrated dry-running detection with automatic cut-out in event of low water via performance characteristics of the motor control electronics

Construction

Water-supply unit with a non-self-priming high-pressure multistage centrifugal pump and integrated speed control

Application

• Fully automatic water supply and pressure boosting in residential, commercial and public buildings, hotels, hospitals, department stores and for industrial systems.

• Pumping of drinking water and process water, cooling water or other types of industrial water that do not attack the materials either chemically or mechanically and do not contain abrasive or long-fibre constituents.

Equipment/function

• 1 MHIE series pump with infinitely variable control mode via integrated frequency converter

• All components in contact with fluid are corrosion resistant

• Shut-off valve, on the pressure side

• Non-return valve, pressure side

• Diaphragm pressure vessel 8 l, PN16

Scope of delivery

• Factory-mounted, connection-ready pressure boosting system checked for functionality and impermeability

• Packaging

• Installation and operating instructions

Type key

Technical data

• Mains connection 3~400 V ± 10 %, 50 Hz; 3~380/440 V ±10 %, 60 Hz or, depending on type, also 1~230 V ± 10 %, 50/60 Hz

• Max. fluid temperature 50 °C (70 °C optional)

• Max. ambient temperature 40 °C

• Operating pressure 10 bar

• Inlet pressure 6 bar

• Nominal connection diameters on inlet side Rp 1" - Rp 2"

• Nominal connection diameters on discharge side R 1¼" - R 1½"

• Speed range 1160 - 3500 rpm

• Protection class IP 54

• Fuse protection on mains side [AC 3] according to motor power and EVU regulations

• Approved fluids (other fluids on request):

  • Pure water without settling sediments

  • Process water, cold water, cooling water and rainwater

  • Drinking water

Materials

• Impellers 1.4301/1.4404 stainless steel

• Stage chambers 1.4301/1.4404 stainless steel

• Pump housing made of 1.4301/1.4404 stainless steel

• Shaft 1.4301/1.4404 stainless steel

• Gasket EPDM (EP 851) / FKM (Viton)

• Housing cover made of 1.4301/1.4404 stainless steel

• Housing bottom 1.4404 stainless steel

• Mechanical seal B-carbon/tungsten carbide, SiC/carbon

• Pressure shroud 1.4301/1.4404 stainless steel

• Bearing, tungsten carbide

• Pump base aluminium

• Pipework made of 1.4571 stainless steel

Description/construction

• Base frame: Stainless steel with height-adjustable vibration absorbers for comprehensive insulation against structure-borne noise

• Pipework: complete pressure-side pipework made of stainless steel, suitable for the connection of all piping materials used in building services; the pipework is dimensioned according to the overall hydraulic performance of the pressure boosting system

• Pumps: 1 pump from the series MHIE 2.., 4.., 8.. or 16.. (up to max. motor power of 2.2 kW) is used; the adapted, air-cooled frequency converter on the pump motor enables continuous auto control between 25 Hz and a maximum of 60 Hz for all pumps of these series; all pump components in contact with fluid are made of stainless steel.

• Valves: the pump is fitted on the pressure side with a shut-off valve with DVGW approval mark and a DVGW-approved non-return valve

• Diaphragm pressure vessel: 8 l/PN16 located on the discharge side with a butyl rubber diaphragm, completely safe in accordance with food safety laws; for testing and inspection purposes, with ball valve, with drain and throughflow fitting according to DIN 4807